You can dance when you have your period, but not all dances can be danced, for example, break dancing is not allowed when you have your period, and other street dances are not recommended. You can dance ballroom dancing in moderation when you have your period, so that it will not affect your period, because it often leads to the phenomenon of fatigue during menstruation, and if you do strenuous exercise, it will aggravate this feeling of fatigue. If you do strenuous exercise during menstruation, it may also lead to the reversal of menstrual blood flow, resulting in endometriosis, progressive aggravation of dysmenorrhea in the future, and may even lead to infertility. So you can dance when you are menstruating, but avoid strenuous exercise, and pay proper attention to keep warm and give proper rest when you are menstruating.